yoho-flip

+# History
+
+---
+
+## 0.0.1
+
+`new` It is the first version of yoho-flip.

+# yoho-flip [![spm version](http://spm.yoho.cn/badge/yoho-flip)](http://spm.yoho.cn/package/yoho-flip)
+
+---
+
+yoho-flip
+
+## Install
+
+```
+$ spm install yoho-flip --save
+```
+
+## Usage
+
+```js
+var yohoFlip = require('yoho-flip');
+// use yohoFlip
+```

+define("yoho-flip/0.0.1/index-debug", ["jquery/1.8.3/jquery-debug","jquery.rotate2d/0.0.1/index-debug","jquery.imagesloaded/0.0.2/index-debug","jquery/1.7.2/jquery-debug"], function(require, exports, module){
+
+/**
+ * @fileOverview 实现图片翻转控件
+ * @author ww
+ * @date 2014-07-22
+ */
+
+    var $ = require("jquery/1.8.3/jquery-debug");
+    require("jquery.rotate2d/0.0.1/index-debug");
+    require("jquery.imagesloaded/0.0.2/index-debug");  //懒加载
+    var height;
+    var scrollTop;
+    var windowHeight=$(window).height();
+    var delay,returnDelay,isPlaying=false;
+    //翻转当前对象动画
+    function RevolvePic(target){
+        //延时对象
+        var timeHandler1,timeHandler2,timeHandler3,timeHandler4;
+       	var Y = target.offset().top;
+        target.height(target.find("img:first").height());
+       	height=target.height();
+        //分别判断图片小于屏幕和大于屏幕的情况
+        var last=target.find("a[pic='last']");//第二章图片对象
+        last.bind("webkitAnimationEnd",function(){
+            isPlaying=false;
+        });
+        
+	    //当图片高度小于屏幕高度：滚动高度+屏幕高度>=图片顶端位置+图片高度的三分之二（当三分之二的图片进入屏幕范围即可开始旋转），滚动高度<空间顶端位置+控件高度的三分之二（说明向上滚动）
+        if ((scrollTop+windowHeight>=Y+height/3*2&&scrollTop<Y+height/3*2)//图片小于屏幕
+            ||
+	    //当图片高度大于屏幕时分别判断：图片顶端位置+图片高度<=滚动高度+屏幕高度（说明图片已经滚动到底）以及  图片顶端位置-50<=滚动高度（说明图片顶端接近屏幕顶端）
+	    //以上两种判断分别对应：向上滚动、向下滚动
+            (height>=windowHeight&&Y-50<=scrollTop)||(height>=windowHeight&&Y+height<=scrollTop+windowHeight)) {//当图片大于屏幕时执行
+
+            isStayLong=true;//用户在该显示区域已经停留了足够长的时间，1S
+			
+            //判断是否已经增加过了旋转样式，如果没有增加就追加
+            if (target.attr("RevolvePic")==undefined) {
+                var eleBack = null, eleFront = null,
+                // 两张被翻转的图片元素
+                eleList = target.find(".img");
+                // 确定前面与后面元素
+                var funBackOrFront = function() {
+                    eleList.each(function() {
+                        if ($(this).hasClass("out")) {
+                            eleBack = $(this);
+                        } else {
+                            eleFront = $(this);
+                        }
+                    });
+                };
+
+                window.setTimeout(function(){
+		    	//根据动画播放完毕的回调事件判断动画播放不会重叠
+                    if (!isPlaying) {
+                        isPlaying=true;
+                        funBackOrFront();
+                        timeHandler1=window.setTimeout(function(){
+                            eleFront.addClass("out").removeClass("in");
+                            timeHandler2=setTimeout(function() {
+                                eleBack.addClass("in").removeClass("out");
+                                // 重新确定正反元素
+                                funBackOrFront();
+                            },155);
+                        },delay-1000);
+                        timeHandler3=window.setTimeout(function(){
+                            eleFront.addClass("out").removeClass("in");
+                            timeHandler4=setTimeout(function() {
+                                eleBack.addClass("in").removeClass("out");
+                                // 重新确定正反元素
+                                funBackOrFront();
+                                target.find(".imga:first").removeClass("out").removeClass("in");
+                                target.find(".imga:last").addClass("out");
+                            },155);
+                        },delay+returnDelay-1000);
+                        target.attr("RevolvePic","RevolvePic");
+                    }
+                },1000);
+            }
+        }
+        else
+        {
+                //页面被拉动到其他区域后
+                isStayLong=false;
+				//移出当前区域后解除对target对象的标记
+                if (target.attr("RevolvePic")!=undefined) {
+                    target.removeAttr("RevolvePic");
+                }
+                //清除四个定时器
+                window.clearTimeout(timeHandler1);
+                window.clearTimeout(timeHandler2);
+                window.clearTimeout(timeHandler3);
+                window.clearTimeout(timeHandler4);
+                
+        }
+    }
+    
+  
+    exports.init=function(info){
+        /**
+        * target:被翻转图片的父级DIV元素
+        * height：图片高度
+        * delay：从静止到开始动画的等待时间
+        * returnDelay：从第二幅图片翻转至第一幅图片的等待时间
+        */
+        var defaults={
+        	operate:"auto",//auto:进入显示区域自动翻转；mouse：鼠标hover翻转一次，鼠标离开再次翻转
+            delay:2000,
+            returnDelay:2000,
+            wrapClass: '.lifestyle-flip'
+        }
+        var opts = $.extend(defaults, info);
+        var targets=null;
+        targets=$(opts.wrapClass);
+	height=opts.height;
+	delay=opts.delay;
+	returnDelay=opts.returnDelay;  
+	//当前滚动条的位置
+	scrollTop=$(document).scrollTop();
+	//是否单次播放完毕
+	var isPlaying=false;
+	var isStayLong=false;
+	if(opts.operate=="auto")
+	{
+	    //获取到前后面的图片
+        var isImagesLoaded=false;
+	    targets.find("img:first").imagesLoaded(function(){
+            isImagesLoaded=true;
+            RevolvePic($(this).parent().parent());
+		});
+
+
+		$(window).scroll(function(){
+            if(isImagesLoaded===true){
+		    scrollTop=$(document).scrollTop();
+			targets.each(function(index,obj){
+			    RevolvePic($(obj));
+			});
+		};
+        });
+	}
+	else if(opts.operate=="mouse")
+	{
+		var eleBack = null, eleFront = null;
+		// 确定前面与后面元素
+        var funBackOrFront = function(tmpobj) {
+        	eleList = tmpobj.find(".img");
+            eleList.each(function() {
+                if ($(this).hasClass("out")) {
+                    eleBack = $(this);
+                } else {
+                    eleFront = $(this);
+                }
+            });
+        };
+		targets.each(function(index,obj){
+
+			$(obj).dbRotate2D();
+		});
+	}
+        
+    }
+    
+
+
+});

+define("yoho-flip/0.0.1/index",["jquery/1.8.3/jquery","jquery.rotate2d/0.0.1/index","jquery.imagesloaded/0.0.2/index","jquery/1.7.2/jquery"],function(e,i){function t(e){var i,t,l,f,c=e.offset().top;e.height(e.find("img:first").height()),n=e.height();var m=e.find("a[pic='last']");if(m.bind("webkitAnimationEnd",function(){d=!1}),a+u>=c+n/3*2&&c+n/3*2>a||n>=u&&a>=c-50||n>=u&&a+u>=c+n){if(isStayLong=!0,void 0==e.attr("RevolvePic")){var v=null,w=null,h=e.find(".img"),y=function(){h.each(function(){o(this).hasClass("out")?v=o(this):w=o(this)})};window.setTimeout(function(){d||(d=!0,y(),i=window.setTimeout(function(){w.addClass("out").removeClass("in"),t=setTimeout(function(){v.addClass("in").removeClass("out"),y()},155)},s-1e3),l=window.setTimeout(function(){w.addClass("out").removeClass("in"),f=setTimeout(function(){v.addClass("in").removeClass("out"),y(),e.find(".imga:first").removeClass("out").removeClass("in"),e.find(".imga:last").addClass("out")},155)},s+r-1e3),e.attr("RevolvePic","RevolvePic"))},1e3)}}else isStayLong=!1,void 0!=e.attr("RevolvePic")&&e.removeAttr("RevolvePic"),window.clearTimeout(i),window.clearTimeout(t),window.clearTimeout(l),window.clearTimeout(f)}var o=e("jquery/1.8.3/jquery");e("jquery.rotate2d/0.0.1/index"),e("jquery.imagesloaded/0.0.2/index");var n,a,s,r,u=o(window).height(),d=!1;i.init=function(e){var i={operate:"auto",delay:2e3,returnDelay:2e3,wrapClass:".lifestyle-flip"},u=o.extend(i,e),d=null;d=o(u.wrapClass),n=u.height,s=u.delay,r=u.returnDelay,a=o(document).scrollTop();if("auto"==u.operate){var l=!1;d.find("img:first").imagesLoaded(function(){l=!0,t(o(this).parent().parent())}),o(window).scroll(function(){l===!0&&(a=o(document).scrollTop(),d.each(function(e,i){t(o(i))}))})}else if("mouse"==u.operate){d.each(function(e,i){o(i).dbRotate2D()})}}});
\ No newline at end of file

+# Demo
+
+---
+
+## Normal usage
+
+````javascript
+seajs.use('index', function(yohoFlip) {
+
+});
+````

+
+/**
+ * @fileOverview 实现图片翻转控件
+ * @author ww
+ * @date 2014-07-22
+ */
+
+    var $ = require("jquery");
+    require("jquery.rotate2d");
+    require('jquery.imagesloaded');  //懒加载
+    var height;
+    var scrollTop;
+    var windowHeight=$(window).height();
+    var delay,returnDelay,isPlaying=false;
+    //翻转当前对象动画
+    function RevolvePic(target){
+        //延时对象
+        var timeHandler1,timeHandler2,timeHandler3,timeHandler4;
+       	var Y = target.offset().top;
+        target.height(target.find("img:first").height());
+       	height=target.height();
+        //分别判断图片小于屏幕和大于屏幕的情况
+        var last=target.find("a[pic='last']");//第二章图片对象
+        last.bind("webkitAnimationEnd",function(){
+            isPlaying=false;
+        });
+        
+	    //当图片高度小于屏幕高度：滚动高度+屏幕高度>=图片顶端位置+图片高度的三分之二（当三分之二的图片进入屏幕范围即可开始旋转），滚动高度<空间顶端位置+控件高度的三分之二（说明向上滚动）
+        if ((scrollTop+windowHeight>=Y+height/3*2&&scrollTop<Y+height/3*2)//图片小于屏幕
+            ||
+	    //当图片高度大于屏幕时分别判断：图片顶端位置+图片高度<=滚动高度+屏幕高度（说明图片已经滚动到底）以及  图片顶端位置-50<=滚动高度（说明图片顶端接近屏幕顶端）
+	    //以上两种判断分别对应：向上滚动、向下滚动
+            (height>=windowHeight&&Y-50<=scrollTop)||(height>=windowHeight&&Y+height<=scrollTop+windowHeight)) {//当图片大于屏幕时执行
+
+            isStayLong=true;//用户在该显示区域已经停留了足够长的时间，1S
+			
+            //判断是否已经增加过了旋转样式，如果没有增加就追加
+            if (target.attr("RevolvePic")==undefined) {
+                var eleBack = null, eleFront = null,
+                // 两张被翻转的图片元素
+                eleList = target.find(".img");
+                // 确定前面与后面元素
+                var funBackOrFront = function() {
+                    eleList.each(function() {
+                        if ($(this).hasClass("out")) {
+                            eleBack = $(this);
+                        } else {
+                            eleFront = $(this);
+                        }
+                    });
+                };
+
+                window.setTimeout(function(){
+		    	//根据动画播放完毕的回调事件判断动画播放不会重叠
+                    if (!isPlaying) {
+                        isPlaying=true;
+                        funBackOrFront();
+                        timeHandler1=window.setTimeout(function(){
+                            eleFront.addClass("out").removeClass("in");
+                            timeHandler2=setTimeout(function() {
+                                eleBack.addClass("in").removeClass("out");
+                                // 重新确定正反元素
+                                funBackOrFront();
+                            },155);
+                        },delay-1000);
+                        timeHandler3=window.setTimeout(function(){
+                            eleFront.addClass("out").removeClass("in");
+                            timeHandler4=setTimeout(function() {
+                                eleBack.addClass("in").removeClass("out");
+                                // 重新确定正反元素
+                                funBackOrFront();
+                                target.find(".imga:first").removeClass("out").removeClass("in");
+                                target.find(".imga:last").addClass("out");
+                            },155);
+                        },delay+returnDelay-1000);
+                        target.attr("RevolvePic","RevolvePic");
+                    }
+                },1000);
+            }
+        }
+        else
+        {
+                //页面被拉动到其他区域后
+                isStayLong=false;
+				//移出当前区域后解除对target对象的标记
+                if (target.attr("RevolvePic")!=undefined) {
+                    target.removeAttr("RevolvePic");
+                }
+                //清除四个定时器
+                window.clearTimeout(timeHandler1);
+                window.clearTimeout(timeHandler2);
+                window.clearTimeout(timeHandler3);
+                window.clearTimeout(timeHandler4);
+                
+        }
+    }
+    
+  
+    exports.init=function(info){
+        /**
+        * target:被翻转图片的父级DIV元素
+        * height：图片高度
+        * delay：从静止到开始动画的等待时间
+        * returnDelay：从第二幅图片翻转至第一幅图片的等待时间
+        */
+        var defaults={
+        	operate:"auto",//auto:进入显示区域自动翻转；mouse：鼠标hover翻转一次，鼠标离开再次翻转
+            delay:2000,
+            returnDelay:2000,
+            wrapClass: '.lifestyle-flip'
+        }
+        var opts = $.extend(defaults, info);
+        var targets=null;
+        targets=$(opts.wrapClass);
+	height=opts.height;
+	delay=opts.delay;
+	returnDelay=opts.returnDelay;  
+	//当前滚动条的位置
+	scrollTop=$(document).scrollTop();
+	//是否单次播放完毕
+	var isPlaying=false;
+	var isStayLong=false;
+	if(opts.operate=="auto")
+	{
+	    //获取到前后面的图片
+        var isImagesLoaded=false;
+	    targets.find("img:first").imagesLoaded(function(){
+            isImagesLoaded=true;
+            RevolvePic($(this).parent().parent());
+		});
+
+
+		$(window).scroll(function(){
+            if(isImagesLoaded===true){
+		    scrollTop=$(document).scrollTop();
+			targets.each(function(index,obj){
+			    RevolvePic($(obj));
+			});
+		};
+        });
+	}
+	else if(opts.operate=="mouse")
+	{
+		var eleBack = null, eleFront = null;
+		// 确定前面与后面元素
+        var funBackOrFront = function(tmpobj) {
+        	eleList = tmpobj.find(".img");
+            eleList.each(function() {
+                if ($(this).hasClass("out")) {
+                    eleBack = $(this);
+                } else {
+                    eleFront = $(this);
+                }
+            });
+        };
+		targets.each(function(index,obj){
+
+			$(obj).dbRotate2D();
+		});
+	}
+        
+    }
+    
+

+{
+  "name": "yoho-flip",
+  "version": "0.0.1",
+  "description": "yoho-flip",
+  "keywords": [],
+  "homepage": "",
+  "author": "happyhour7 <happyhour7@163.com>",
+  "repository": {
+    "type": "git",
+    "url": ""
+  },
+  "bugs": {
+    "url": ""
+  },
+  "licenses": "MIT",
+  "spm": {
+    "main": "index.js",
+    "dependencies": {
+      "jquery": "1.8.3",
+      "jquery.rotate2d": "0.0.1",
+      "jquery.imagesloaded": "0.0.2"
+    },
+    "devDependencies": {
+      "expect.js": "0.3.1"
+    }
+  },
+  "devDependencies": {
+    "spm": "3"
+  },
+  "scripts": {
+    "test": "spm test",
+    "build": "spm build"
+  }
+}
\ No newline at end of file

+node_modules
+.DS_Store

+support
+test
+Makefile

+
+0.3.0 / 2014-02-20
+==================
+
+ * renmaed to `index.js`
+ * added repository to package.json
+ * remove unused variable and merge
+ * simpify isDate() and remove unnecessary semicolon.
+ * Add .withArgs() syntax for building scenario
+ * eql(): fix wrong order of actual vs. expected.
+ * Added formatting for Error objects
+ * Add support for 'regexp' type and eql comparison of regular expressions.
+ * Better to follow the same coding style
+ * Use 'showDiff' flag
+ * Add 'actual' & 'expected' property to the thrown error
+ * Pass .fail() unit test
+ * Ignore 'script*' global leak in chrome
+ * Exposed object stringification function
+ * Use isRegExp in Assertion::throwException. Fix #25
+ * Cleaned up local variables
+
+0.2.0 / 2012-10-19
+==================
+
+  * fix isRegExp bug in some edge cases
+  * add closure to all assertion messages deferring costly inspects
+    until there is actually a failure
+  * fix `make test` for recent mochas
+  * add inspect() case for DOM elements
+  * relax failure msg null check
+  * add explicit failure through `expect().fail()`
+  * clarified all `empty` functionality in README example
+  * added docs for throwException fn/regexp signatures
+
+0.1.2 / 2012-02-04
+==================
+
+  * Added regexp matching support for exceptions.
+  * Added support for throwException callback.
+  * Added `throwError` synonym to `throwException`.
+  * Added object support for `.empty`.
+  * Fixed `.a('object')` with nulls, and english error in error message.
+  * Fix bug `indexOf` (IE). [hokaccha]
+  * Fixed object property checking with `undefined` as value. [vovik]
+
+0.1.1 / 2011-12-18
+==================
+
+  * Fixed typo
+
+0.1.0 / 2011-12-18
+==================
+
+  * Initial import

+
+REPORTER = dot
+
+test:
+	@./node_modules/.bin/mocha \
+		--require ./test/common \
+		--reporter $(REPORTER) \
+		--growl \
+		test/expect.js
+
+test-browser:
+	@./node_modules/.bin/serve .
+
+.PHONY: test

+# Expect
+
+Minimalistic BDD assertion toolkit based on
+[should.js](http://github.com/visionmedia/should.js)
+
+```js
+expect(window.r).to.be(undefined);
+expect({ a: 'b' }).to.eql({ a: 'b' })
+expect(5).to.be.a('number');
+expect([]).to.be.an('array');
+expect(window).not.to.be.an(Image);
+```
+
+## Features
+
+- Cross-browser: works on IE6+, Firefox, Safari, Chrome, Opera.
+- Compatible with all test frameworks.
+- Node.JS ready (`require('expect.js')`).
+- Standalone. Single global with no prototype extensions or shims.
+
+## How to use
+
+### Node
+
+Install it with NPM or add it to your `package.json`:
+
+```
+$ npm install expect.js
+```
+
+Then:
+
+```js
+var expect = require('expect.js');
+```
+
+### Browser
+
+Expose the `index.js` found at the top level of this repository.
+
+```html
+<script src="expect.js"></script>
+```
+
+## API
+
+**ok**: asserts that the value is _truthy_ or not
+
+```js
+expect(1).to.be.ok();
+expect(true).to.be.ok();
+expect({}).to.be.ok();
+expect(0).to.not.be.ok();
+```
+
+**be** / **equal**: asserts `===` equality
+
+```js
+expect(1).to.be(1)
+expect(NaN).not.to.equal(NaN);
+expect(1).not.to.be(true)
+expect('1').to.not.be(1);
+```
+
+**eql**: asserts loose equality that works with objects
+
+```js
+expect({ a: 'b' }).to.eql({ a: 'b' });
+expect(1).to.eql('1');
+```
+
+**a**/**an**: asserts `typeof` with support for `array` type and `instanceof`
+
+```js
+// typeof with optional `array`
+expect(5).to.be.a('number');
+expect([]).to.be.an('array');  // works
+expect([]).to.be.an('object'); // works too, since it uses `typeof`
+
+// constructors
+expect(5).to.be.a(Number);
+expect([]).to.be.an(Array);
+expect(tobi).to.be.a(Ferret);
+expect(person).to.be.a(Mammal);
+```
+
+**match**: asserts `String` regular expression match
+
+```js
+expect(program.version).to.match(/[0-9]+\.[0-9]+\.[0-9]+/);
+```
+
+**contain**: asserts indexOf for an array or string
+
+```js
+expect([1, 2]).to.contain(1);
+expect('hello world').to.contain('world');
+```
+
+**length**: asserts array `.length`
+
+```js
+expect([]).to.have.length(0);
+expect([1,2,3]).to.have.length(3);
+```
+
+**empty**: asserts that an array is empty or not
+
+```js
+expect([]).to.be.empty();
+expect({}).to.be.empty();
+expect({ length: 0, duck: 'typing' }).to.be.empty();
+expect({ my: 'object' }).to.not.be.empty();
+expect([1,2,3]).to.not.be.empty();
+```
+
+**property**: asserts presence of an own property (and value optionally)
+
+```js
+expect(window).to.have.property('expect')
+expect(window).to.have.property('expect', expect)
+expect({a: 'b'}).to.have.property('a');
+```
+
+**key**/**keys**: asserts the presence of a key. Supports the `only` modifier
+
+```js
+expect({ a: 'b' }).to.have.key('a');
+expect({ a: 'b', c: 'd' }).to.only.have.keys('a', 'c');
+expect({ a: 'b', c: 'd' }).to.only.have.keys(['a', 'c']);
+expect({ a: 'b', c: 'd' }).to.not.only.have.key('a');
+```
+
+**throwException**/**throwError**: asserts that the `Function` throws or not when called
+
+```js
+expect(fn).to.throwError(); // synonym of throwException
+expect(fn).to.throwException(function (e) { // get the exception object
+  expect(e).to.be.a(SyntaxError);
+});
+expect(fn).to.throwException(/matches the exception message/);
+expect(fn2).to.not.throwException();
+```
+
+**withArgs**: creates anonymous function to call fn with arguments
+
+```js
+expect(fn).withArgs(invalid, arg).to.throwException();
+expect(fn).withArgs(valid, arg).to.not.throwException();
+```
+
+**within**: asserts a number within a range
+
+```js
+expect(1).to.be.within(0, Infinity);
+```
+
+**greaterThan**/**above**: asserts `>`
+
+```js
+expect(3).to.be.above(0);
+expect(5).to.be.greaterThan(3);
+```
+
+**lessThan**/**below**: asserts `<`
+
+```js
+expect(0).to.be.below(3);
+expect(1).to.be.lessThan(3);
+```
+
+**fail**: explicitly forces failure.
+
+```js
+expect().fail()
+expect().fail("Custom failure message")
+```
+
+## Using with a test framework
+
+For example, if you create a test suite with
+[mocha](http://github.com/visionmedia/mocha).
+
+Let's say we wanted to test the following program:
+
+**math.js**
+
+```js
+function add (a, b) { return a + b; };
+```
+
+Our test file would look like this:
+
+```js
+describe('test suite', function () {
+  it('should expose a function', function () {
+    expect(add).to.be.a('function');
+  });
+
+  it('should do math', function () {
+    expect(add(1, 3)).to.equal(4);
+  });
+});
+```
+
+If a certain expectation fails, an exception will be raised which gets captured
+and shown/processed by the test runner.
+
+## Differences with should.js
+
+- No need for static `should` methods like `should.strictEqual`. For example, 
+  `expect(obj).to.be(undefined)` works well.
+- Some API simplifications / changes.
+- API changes related to browser compatibility.
+
+## Running tests
+
+Clone the repository and install the developer dependencies:
+
+```
+git clone git://github.com/LearnBoost/expect.js.git expect
+cd expect && npm install
+```
+
+### Node
+
+`make test`
+
+### Browser
+
+`make test-browser`
+
+and point your browser(s) to `http://localhost:3000/test/`
+
+## Credits
+
+(The MIT License)
+
+Copyright (c) 2011 Guillermo Rauch &lt;guillermo@learnboost.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+### 3rd-party
+
+Heavily borrows from [should.js](http://github.com/visionmedia/should.js) by TJ
+Holowaychuck - MIT.

+(function (global, module) {
+
+  var exports = module.exports;
+
+  /**
+   * Exports.
+   */
+
+  module.exports = expect;
+  expect.Assertion = Assertion;
+
+  /**
+   * Exports version.
+   */
+
+  expect.version = '0.3.1';
+
+  /**
+   * Possible assertion flags.
+   */
+
+  var flags = {
+      not: ['to', 'be', 'have', 'include', 'only']
+    , to: ['be', 'have', 'include', 'only', 'not']
+    , only: ['have']
+    , have: ['own']
+    , be: ['an']
+  };
+
+  function expect (obj) {
+    return new Assertion(obj);
+  }
+
+  /**
+   * Constructor
+   *
+   * @api private
+   */
+
+  function Assertion (obj, flag, parent) {
+    this.obj = obj;
+    this.flags = {};
+
+    if (undefined != parent) {
+      this.flags[flag] = true;
+
+      for (var i in parent.flags) {
+        if (parent.flags.hasOwnProperty(i)) {
+          this.flags[i] = true;
+        }
+      }
+    }
+
+    var $flags = flag ? flags[flag] : keys(flags)
+      , self = this;
+
+    if ($flags) {
+      for (var i = 0, l = $flags.length; i < l; i++) {
+        // avoid recursion
+        if (this.flags[$flags[i]]) continue;
+
+        var name = $flags[i]
+          , assertion = new Assertion(this.obj, name, this)
+
+        if ('function' == typeof Assertion.prototype[name]) {
+          // clone the function, make sure we dont touch the prot reference
+          var old = this[name];
+          this[name] = function () {
+            return old.apply(self, arguments);
+          };
+
+          for (var fn in Assertion.prototype) {
+            if (Assertion.prototype.hasOwnProperty(fn) && fn != name) {
+              this[name][fn] = bind(assertion[fn], assertion);
+            }
+          }
+        } else {
+          this[name] = assertion;
+        }
+      }
+    }
+  }
+
+  /**
+   * Performs an assertion
+   *
+   * @api private
+   */
+
+  Assertion.prototype.assert = function (truth, msg, error, expected) {
+    var msg = this.flags.not ? error : msg
+      , ok = this.flags.not ? !truth : truth
+      , err;
+
+    if (!ok) {
+      err = new Error(msg.call(this));
+      if (arguments.length > 3) {
+        err.actual = this.obj;
+        err.expected = expected;
+        err.showDiff = true;
+      }
+      throw err;
+    }
+
+    this.and = new Assertion(this.obj);
+  };
+
+  /**
+   * Check if the value is truthy
+   *
+   * @api public
+   */
+
+  Assertion.prototype.ok = function () {
+    this.assert(
+        !!this.obj
+      , function(){ return 'expected ' + i(this.obj) + ' to be truthy' }
+      , function(){ return 'expected ' + i(this.obj) + ' to be falsy' });
+  };
+
+  /**
+   * Creates an anonymous function which calls fn with arguments.
+   *
+   * @api public
+   */
+
+  Assertion.prototype.withArgs = function() {
+    expect(this.obj).to.be.a('function');
+    var fn = this.obj;
+    var args = Array.prototype.slice.call(arguments);
+    return expect(function() { fn.apply(null, args); });
+  };
+
+  /**
+   * Assert that the function throws.
+   *
+   * @param {Function|RegExp} callback, or regexp to match error string against
+   * @api public
+   */
+
+  Assertion.prototype.throwError =
+  Assertion.prototype.throwException = function (fn) {
+    expect(this.obj).to.be.a('function');
+
+    var thrown = false
+      , not = this.flags.not;
+
+    try {
+      this.obj();
+    } catch (e) {
+      if (isRegExp(fn)) {
+        var subject = 'string' == typeof e ? e : e.message;
+        if (not) {
+          expect(subject).to.not.match(fn);
+        } else {
+          expect(subject).to.match(fn);
+        }
+      } else if ('function' == typeof fn) {
+        fn(e);
+      }
+      thrown = true;
+    }
+
+    if (isRegExp(fn) && not) {
+      // in the presence of a matcher, ensure the `not` only applies to
+      // the matching.
+      this.flags.not = false;
+    }
+
+    var name = this.obj.name || 'fn';
+    this.assert(
+        thrown
+      , function(){ return 'expected ' + name + ' to throw an exception' }
+      , function(){ return 'expected ' + name + ' not to throw an exception' });
+  };
+
+  /**
+   * Checks if the array is empty.
+   *
+   * @api public
+   */
+
+  Assertion.prototype.empty = function () {
+    var expectation;
+
+    if ('object' == typeof this.obj && null !== this.obj && !isArray(this.obj)) {
+      if ('number' == typeof this.obj.length) {
+        expectation = !this.obj.length;
+      } else {
+        expectation = !keys(this.obj).length;
+      }
+    } else {
+      if ('string' != typeof this.obj) {
+        expect(this.obj).to.be.an('object');
+      }
+
+      expect(this.obj).to.have.property('length');
+      expectation = !this.obj.length;
+    }
+
+    this.assert(
+        expectation
+      , function(){ return 'expected ' + i(this.obj) + ' to be empty' }
+      , function(){ return 'expected ' + i(this.obj) + ' to not be empty' });
+    return this;
+  };
+
+  /**
+   * Checks if the obj exactly equals another.
+   *
+   * @api public
+   */
+
+  Assertion.prototype.be =
+  Assertion.prototype.equal = function (obj) {
+    this.assert(
+        obj === this.obj
+      , function(){ return 'expected ' + i(this.obj) + ' to equal ' + i(obj) }
+      , function(){ return 'expected ' + i(this.obj) + ' to not equal ' + i(obj) });
+    return this;
+  };
+
+  /**
+   * Checks if the obj sortof equals another.
+   *
+   * @api public
+   */
+
+  Assertion.prototype.eql = function (obj) {
+    this.assert(
+        expect.eql(this.obj, obj)
+      , function(){ return 'expected ' + i(this.obj) + ' to sort of equal ' + i(obj) }
+      , function(){ return 'expected ' + i(this.obj) + ' to sort of not equal ' + i(obj) }
+      , obj);
+    return this;
+  };
+
+  /**
+   * Assert within start to finish (inclusive).
+   *
+   * @param {Number} start
+   * @param {Number} finish
+   * @api public
+   */
+
+  Assertion.prototype.within = function (start, finish) {
+    var range = start + '..' + finish;
+    this.assert(
+        this.obj >= start && this.obj <= finish
+      , function(){ return 'expected ' + i(this.obj) + ' to be within ' + range }
+      , function(){ return 'expected ' + i(this.obj) + ' to not be within ' + range });
+    return this;
+  };
+
+  /**
+   * Assert typeof / instance of
+   *
+   * @api public
+   */
+
+  Assertion.prototype.a =
+  Assertion.prototype.an = function (type) {
+    if ('string' == typeof type) {
+      // proper english in error msg
+      var n = /^[aeiou]/.test(type) ? 'n' : '';
+
+      // typeof with support for 'array'
+      this.assert(
+          'array' == type ? isArray(this.obj) :
+            'regexp' == type ? isRegExp(this.obj) :
+              'object' == type
+                ? 'object' == typeof this.obj && null !== this.obj
+                : type == typeof this.obj
+        , function(){ return 'expected ' + i(this.obj) + ' to be a' + n + ' ' + type }
+        , function(){ return 'expected ' + i(this.obj) + ' not to be a' + n + ' ' + type });
+    } else {
+      // instanceof
+      var name = type.name || 'supplied constructor';
+      this.assert(
+          this.obj instanceof type
+        , function(){ return 'expected ' + i(this.obj) + ' to be an instance of ' + name }
+        , function(){ return 'expected ' + i(this.obj) + ' not to be an instance of ' + name });
+    }
+
+    return this;
+  };
+
+  /**
+   * Assert numeric value above _n_.
+   *
+   * @param {Number} n
+   * @api public
+   */
+
+  Assertion.prototype.greaterThan =
+  Assertion.prototype.above = function (n) {
+    this.assert(
+        this.obj > n
+      , function(){ return 'expected ' + i(this.obj) + ' to be above ' + n }
+      , function(){ return 'expected ' + i(this.obj) + ' to be below ' + n });
+    return this;
+  };
+
+  /**
+   * Assert numeric value below _n_.
+   *
+   * @param {Number} n
+   * @api public
+   */
+
+  Assertion.prototype.lessThan =
+  Assertion.prototype.below = function (n) {
+    this.assert(
+        this.obj < n
+      , function(){ return 'expected ' + i(this.obj) + ' to be below ' + n }
+      , function(){ return 'expected ' + i(this.obj) + ' to be above ' + n });
+    return this;
+  };
+
+  /**
+   * Assert string value matches _regexp_.
+   *
+   * @param {RegExp} regexp
+   * @api public
+   */
+
+  Assertion.prototype.match = function (regexp) {
+    this.assert(
+        regexp.exec(this.obj)
+      , function(){ return 'expected ' + i(this.obj) + ' to match ' + regexp }
+      , function(){ return 'expected ' + i(this.obj) + ' not to match ' + regexp });
+    return this;
+  };
+
+  /**
+   * Assert property "length" exists and has value of _n_.
+   *
+   * @param {Number} n
+   * @api public
+   */
+
+  Assertion.prototype.length = function (n) {
+    expect(this.obj).to.have.property('length');
+    var len = this.obj.length;
+    this.assert(
+        n == len
+      , function(){ return 'expected ' + i(this.obj) + ' to have a length of ' + n + ' but got ' + len }
+      , function(){ return 'expected ' + i(this.obj) + ' to not have a length of ' + len });
+    return this;
+  };
+
+  /**
+   * Assert property _name_ exists, with optional _val_.
+   *
+   * @param {String} name
+   * @param {Mixed} val
+   * @api public
+   */
+
+  Assertion.prototype.property = function (name, val) {
+    if (this.flags.own) {
+      this.assert(
+          Object.prototype.hasOwnProperty.call(this.obj, name)
+        , function(){ return 'expected ' + i(this.obj) + ' to have own property ' + i(name) }
+        , function(){ return 'expected ' + i(this.obj) + ' to not have own property ' + i(name) });
+      return this;
+    }
+
+    if (this.flags.not && undefined !== val) {
+      if (undefined === this.obj[name]) {
+        throw new Error(i(this.obj) + ' has no property ' + i(name));
+      }
+    } else {
+      var hasProp;
+      try {
+        hasProp = name in this.obj
+      } catch (e) {
+        hasProp = undefined !== this.obj[name]
+      }
+
+      this.assert(
+          hasProp
+        , function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name) }
+        , function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name) });
+    }
+
+    if (undefined !== val) {
+      this.assert(
+          val === this.obj[name]
+        , function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name)
+          + ' of ' + i(val) + ', but got ' + i(this.obj[name]) }
+        , function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name)
+          + ' of ' + i(val) });
+    }
+
+    this.obj = this.obj[name];
+    return this;
+  };
+
+  /**
+   * Assert that the array contains _obj_ or string contains _obj_.
+   *
+   * @param {Mixed} obj|string
+   * @api public
+   */
+
+  Assertion.prototype.string =
+  Assertion.prototype.contain = function (obj) {
+    if ('string' == typeof this.obj) {
+      this.assert(
+          ~this.obj.indexOf(obj)
+        , function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
+        , function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
+    } else {
+      this.assert(
+          ~indexOf(this.obj, obj)
+        , function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
+        , function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
+    }
+    return this;
+  };
+
+  /**
+   * Assert exact keys or inclusion of keys by using
+   * the `.own` modifier.
+   *
+   * @param {Array|String ...} keys
+   * @api public
+   */
+
+  Assertion.prototype.key =
+  Assertion.prototype.keys = function ($keys) {
+    var str
+      , ok = true;
+
+    $keys = isArray($keys)
+      ? $keys
+      : Array.prototype.slice.call(arguments);
+
+    if (!$keys.length) throw new Error('keys required');
+
+    var actual = keys(this.obj)
+      , len = $keys.length;
+
+    // Inclusion
+    ok = every($keys, function (key) {
+      return ~indexOf(actual, key);
+    });
+
+    // Strict
+    if (!this.flags.not && this.flags.only) {
+      ok = ok && $keys.length == actual.length;
+    }
+
+    // Key string
+    if (len > 1) {
+      $keys = map($keys, function (key) {
+        return i(key);
+      });
+      var last = $keys.pop();
+      str = $keys.join(', ') + ', and ' + last;
+    } else {
+      str = i($keys[0]);
+    }
+
+    // Form
+    str = (len > 1 ? 'keys ' : 'key ') + str;
+
+    // Have / include
+    str = (!this.flags.only ? 'include ' : 'only have ') + str;
+
+    // Assertion
+    this.assert(
+        ok
+      , function(){ return 'expected ' + i(this.obj) + ' to ' + str }
+      , function(){ return 'expected ' + i(this.obj) + ' to not ' + str });
+
+    return this;
+  };
+
+  /**
+   * Assert a failure.
+   *
+   * @param {String ...} custom message
+   * @api public
+   */
+  Assertion.prototype.fail = function (msg) {
+    var error = function() { return msg || "explicit failure"; }
+    this.assert(false, error, error);
+    return this;
+  };
+
+  /**
+   * Function bind implementation.
+   */
+
+  function bind (fn, scope) {
+    return function () {
+      return fn.apply(scope, arguments);
+    }
+  }
+
+  /**
+   * Array every compatibility
+   *
+   * @see bit.ly/5Fq1N2
+   * @api public
+   */
+
+  function every (arr, fn, thisObj) {
+    var scope = thisObj || global;
+    for (var i = 0, j = arr.length; i < j; ++i) {
+      if (!fn.call(scope, arr[i], i, arr)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  /**
+   * Array indexOf compatibility.
+   *
+   * @see bit.ly/a5Dxa2
+   * @api public
+   */
+
+  function indexOf (arr, o, i) {
+    if (Array.prototype.indexOf) {
+      return Array.prototype.indexOf.call(arr, o, i);
+    }
+
+    if (arr.length === undefined) {
+      return -1;
+    }
+
+    for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0
+        ; i < j && arr[i] !== o; i++);
+
+    return j <= i ? -1 : i;
+  }
+
+  // https://gist.github.com/1044128/
+  var getOuterHTML = function(element) {
+    if ('outerHTML' in element) return element.outerHTML;
+    var ns = "http://www.w3.org/1999/xhtml";
+    var container = document.createElementNS(ns, '_');
+    var xmlSerializer = new XMLSerializer();
+    var html;
+    if (document.xmlVersion) {
+      return xmlSerializer.serializeToString(element);
+    } else {
+      container.appendChild(element.cloneNode(false));
+      html = container.innerHTML.replace('><', '>' + element.innerHTML + '<');
+      container.innerHTML = '';
+      return html;
+    }
+  };
+
+  // Returns true if object is a DOM element.
+  var isDOMElement = function (object) {
+    if (typeof HTMLElement === 'object') {
+      return object instanceof HTMLElement;
+    } else {
+      return object &&
+        typeof object === 'object' &&
+        object.nodeType === 1 &&
+        typeof object.nodeName === 'string';
+    }
+  };
+
+  /**
+   * Inspects an object.
+   *
+   * @see taken from node.js `util` module (copyright Joyent, MIT license)
+   * @api private
+   */
+
+  function i (obj, showHidden, depth) {
+    var seen = [];
+
+    function stylize (str) {
+      return str;
+    }
+
+    function format (value, recurseTimes) {
+      // Provide a hook for user-specified inspect functions.
+      // Check that value is an object with an inspect function on it
+      if (value && typeof value.inspect === 'function' &&
+          // Filter out the util module, it's inspect function is special
+          value !== exports &&
+          // Also filter out any prototype objects using the circular check.
+          !(value.constructor && value.constructor.prototype === value)) {
+        return value.inspect(recurseTimes);
+      }
+
+      // Primitive types cannot have properties
+      switch (typeof value) {
+        case 'undefined':
+          return stylize('undefined', 'undefined');
+
+        case 'string':
+          var simple = '\'' + json.stringify(value).replace(/^"|"$/g, '')
+                                                   .replace(/'/g, "\\'")
+                                                   .replace(/\\"/g, '"') + '\'';
+          return stylize(simple, 'string');
+
+        case 'number':
+          return stylize('' + value, 'number');
+
+        case 'boolean':
+          return stylize('' + value, 'boolean');
+      }
+      // For some reason typeof null is "object", so special case here.
+      if (value === null) {
+        return stylize('null', 'null');
+      }
+
+      if (isDOMElement(value)) {
+        return getOuterHTML(value);
+      }
+
+      // Look up the keys of the object.
+      var visible_keys = keys(value);
+      var $keys = showHidden ? Object.getOwnPropertyNames(value) : visible_keys;
+
+      // Functions without properties can be shortcutted.
+      if (typeof value === 'function' && $keys.length === 0) {
+        if (isRegExp(value)) {
+          return stylize('' + value, 'regexp');
+        } else {
+          var name = value.name ? ': ' + value.name : '';
+          return stylize('[Function' + name + ']', 'special');
+        }
+      }
+
+      // Dates without properties can be shortcutted
+      if (isDate(value) && $keys.length === 0) {
+        return stylize(value.toUTCString(), 'date');
+      }
+      
+      // Error objects can be shortcutted
+      if (value instanceof Error) {
+        return stylize("["+value.toString()+"]", 'Error');
+      }
+
+      var base, type, braces;
+      // Determine the object type
+      if (isArray(value)) {
+        type = 'Array';
+        braces = ['[', ']'];
+      } else {
+        type = 'Object';
+        braces = ['{', '}'];
+      }
+
+      // Make functions say that they are functions
+      if (typeof value === 'function') {
+        var n = value.name ? ': ' + value.name : '';
+        base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
+      } else {
+        base = '';
+      }
+
+      // Make dates with properties first say the date
+      if (isDate(value)) {
+        base = ' ' + value.toUTCString();
+      }
+
+      if ($keys.length === 0) {
+        return braces[0] + base + braces[1];
+      }
+
+      if (recurseTimes < 0) {
+        if (isRegExp(value)) {
+          return stylize('' + value, 'regexp');
+        } else {
+          return stylize('[Object]', 'special');
+        }
+      }
+
+      seen.push(value);
+
+      var output = map($keys, function (key) {
+        var name, str;
+        if (value.__lookupGetter__) {
+          if (value.__lookupGetter__(key)) {
+            if (value.__lookupSetter__(key)) {
+              str = stylize('[Getter/Setter]', 'special');
+            } else {
+              str = stylize('[Getter]', 'special');
+            }
+          } else {
+            if (value.__lookupSetter__(key)) {
+              str = stylize('[Setter]', 'special');
+            }
+          }
+        }
+        if (indexOf(visible_keys, key) < 0) {
+          name = '[' + key + ']';
+        }
+        if (!str) {
+          if (indexOf(seen, value[key]) < 0) {
+            if (recurseTimes === null) {
+              str = format(value[key]);
+            } else {
+              str = format(value[key], recurseTimes - 1);
+            }
+            if (str.indexOf('\n') > -1) {
+              if (isArray(value)) {
+                str = map(str.split('\n'), function (line) {
+                  return '  ' + line;
+                }).join('\n').substr(2);
+              } else {
+                str = '\n' + map(str.split('\n'), function (line) {
+                  return '   ' + line;
+                }).join('\n');
+              }
+            }
+          } else {
+            str = stylize('[Circular]', 'special');
+          }
+        }
+        if (typeof name === 'undefined') {
+          if (type === 'Array' && key.match(/^\d+$/)) {
+            return str;
+          }
+          name = json.stringify('' + key);
+          if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+            name = name.substr(1, name.length - 2);
+            name = stylize(name, 'name');
+          } else {
+            name = name.replace(/'/g, "\\'")
+                       .replace(/\\"/g, '"')
+                       .replace(/(^"|"$)/g, "'");
+            name = stylize(name, 'string');
+          }
+        }
+
+        return name + ': ' + str;
+      });
+
+      seen.pop();
+
+      var numLinesEst = 0;
+      var length = reduce(output, function (prev, cur) {
+        numLinesEst++;
+        if (indexOf(cur, '\n') >= 0) numLinesEst++;
+        return prev + cur.length + 1;
+      }, 0);
+
+      if (length > 50) {
+        output = braces[0] +
+                 (base === '' ? '' : base + '\n ') +
+                 ' ' +
+                 output.join(',\n  ') +
+                 ' ' +
+                 braces[1];
+
+      } else {
+        output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+      }
+
+      return output;
+    }
+    return format(obj, (typeof depth === 'undefined' ? 2 : depth));
+  }
+
+  expect.stringify = i;
+
+  function isArray (ar) {
+    return Object.prototype.toString.call(ar) === '[object Array]';
+  }
+
+  function isRegExp(re) {
+    var s;
+    try {
+      s = '' + re;
+    } catch (e) {
+      return false;
+    }
+
+    return re instanceof RegExp || // easy case
+           // duck-type for context-switching evalcx case
+           typeof(re) === 'function' &&
+           re.constructor.name === 'RegExp' &&
+           re.compile &&
+           re.test &&
+           re.exec &&
+           s.match(/^\/.*\/[gim]{0,3}$/);
+  }
+
+  function isDate(d) {
+    return d instanceof Date;
+  }
+
+  function keys (obj) {
+    if (Object.keys) {
+      return Object.keys(obj);
+    }
+
+    var keys = [];
+
+    for (var i in obj) {
+      if (Object.prototype.hasOwnProperty.call(obj, i)) {
+        keys.push(i);
+      }
+    }
+
+    return keys;
+  }
+
+  function map (arr, mapper, that) {
+    if (Array.prototype.map) {
+      return Array.prototype.map.call(arr, mapper, that);
+    }
+
+    var other= new Array(arr.length);
+
+    for (var i= 0, n = arr.length; i<n; i++)
+      if (i in arr)
+        other[i] = mapper.call(that, arr[i], i, arr);
+
+    return other;
+  }
+
+  function reduce (arr, fun) {
+    if (Array.prototype.reduce) {
+      return Array.prototype.reduce.apply(
+          arr
+        , Array.prototype.slice.call(arguments, 1)
+      );
+    }
+
+    var len = +this.length;
+
+    if (typeof fun !== "function")
+      throw new TypeError();
+
+    // no value to return if no initial value and an empty array
+    if (len === 0 && arguments.length === 1)
+      throw new TypeError();
+
+    var i = 0;
+    if (arguments.length >= 2) {
+      var rv = arguments[1];
+    } else {
+      do {
+        if (i in this) {
+          rv = this[i++];
+          break;
+        }
+
+        // if array contains no values, no initial value to return
+        if (++i >= len)
+          throw new TypeError();
+      } while (true);
+    }
+
+    for (; i < len; i++) {
+      if (i in this)
+        rv = fun.call(null, rv, this[i], i, this);
+    }
+
+    return rv;
+  }
+
+  /**
+   * Asserts deep equality
+   *
+   * @see taken from node.js `assert` module (copyright Joyent, MIT license)
+   * @api private
+   */
+
+  expect.eql = function eql(actual, expected) {
+    // 7.1. All identical values are equivalent, as determined by ===.
+    if (actual === expected) {
+      return true;
+    } else if ('undefined' != typeof Buffer
+      && Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
+      if (actual.length != expected.length) return false;
+
+      for (var i = 0; i < actual.length; i++) {
+        if (actual[i] !== expected[i]) return false;
+      }
+
+      return true;
+
+      // 7.2. If the expected value is a Date object, the actual value is
+      // equivalent if it is also a Date object that refers to the same time.
+    } else if (actual instanceof Date && expected instanceof Date) {
+      return actual.getTime() === expected.getTime();
+
+      // 7.3. Other pairs that do not both pass typeof value == "object",
+      // equivalence is determined by ==.
+    } else if (typeof actual != 'object' && typeof expected != 'object') {
+      return actual == expected;
+    // If both are regular expression use the special `regExpEquiv` method
+    // to determine equivalence.
+    } else if (isRegExp(actual) && isRegExp(expected)) {
+      return regExpEquiv(actual, expected);
+    // 7.4. For all other Object pairs, including Array objects, equivalence is
+    // determined by having the same number of owned properties (as verified
+    // with Object.prototype.hasOwnProperty.call), the same set of keys
+    // (although not necessarily the same order), equivalent values for every
+    // corresponding key, and an identical "prototype" property. Note: this
+    // accounts for both named and indexed properties on Arrays.
+    } else {
+      return objEquiv(actual, expected);
+    }
+  };
+
+  function isUndefinedOrNull (value) {
+    return value === null || value === undefined;
+  }
+
+  function isArguments (object) {
+    return Object.prototype.toString.call(object) == '[object Arguments]';
+  }
+
+  function regExpEquiv (a, b) {
+    return a.source === b.source && a.global === b.global &&
+           a.ignoreCase === b.ignoreCase && a.multiline === b.multiline;
+  }
+
+  function objEquiv (a, b) {
+    if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
+      return false;
+    // an identical "prototype" property.
+    if (a.prototype !== b.prototype) return false;
+    //~~~I've managed to break Object.keys through screwy arguments passing.
+    //   Converting to array solves the problem.
+    if (isArguments(a)) {
+      if (!isArguments(b)) {
+        return false;
+      }
+      a = pSlice.call(a);
+      b = pSlice.call(b);
+      return expect.eql(a, b);
+    }
+    try{
+      var ka = keys(a),
+        kb = keys(b),
+        key, i;
+    } catch (e) {//happens when one is a string literal and the other isn't
+      return false;
+    }
+    // having the same number of owned properties (keys incorporates hasOwnProperty)
+    if (ka.length != kb.length)
+      return false;
+    //the same set of keys (although not necessarily the same order),
+    ka.sort();
+    kb.sort();
+    //~~~cheap key test
+    for (i = ka.length - 1; i >= 0; i--) {
+      if (ka[i] != kb[i])
+        return false;
+    }
+    //equivalent values for every corresponding key, and
+    //~~~possibly expensive deep test
+    for (i = ka.length - 1; i >= 0; i--) {
+      key = ka[i];
+      if (!expect.eql(a[key], b[key]))
+         return false;
+    }
+    return true;
+  }
+
+  var json = (function () {
+    "use strict";
+
+    if ('object' == typeof JSON && JSON.parse && JSON.stringify) {
+      return {
+          parse: nativeJSON.parse
+        , stringify: nativeJSON.stringify
+      }
+    }
+
+    var JSON = {};
+
+    function f(n) {
+        // Format integers to have at least two digits.
+        return n < 10 ? '0' + n : n;
+    }
+
+    function date(d, key) {
+      return isFinite(d.valueOf()) ?
+          d.getUTCFullYear()     + '-' +
+          f(d.getUTCMonth() + 1) + '-' +
+          f(d.getUTCDate())      + 'T' +
+          f(d.getUTCHours())     + ':' +
+          f(d.getUTCMinutes())   + ':' +
+          f(d.getUTCSeconds())   + 'Z' : null;
+    }
+
+    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+        gap,
+        indent,
+        meta = {    // table of character substitutions
+            '\b': '\\b',
+            '\t': '\\t',
+            '\n': '\\n',
+            '\f': '\\f',
+            '\r': '\\r',
+            '"' : '\\"',
+            '\\': '\\\\'
+        },
+        rep;
+
+
+    function quote(string) {
+
+  // If the string contains no control characters, no quote characters, and no
+  // backslash characters, then we can safely slap some quotes around it.
+  // Otherwise we must also replace the offending characters with safe escape
+  // sequences.
+
+        escapable.lastIndex = 0;
+        return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
+            var c = meta[a];
+            return typeof c === 'string' ? c :
+                '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+        }) + '"' : '"' + string + '"';
+    }
+
+
+    function str(key, holder) {
+
+  // Produce a string from holder[key].
+
+        var i,          // The loop counter.
+            k,          // The member key.
+            v,          // The member value.
+            length,
+            mind = gap,
+            partial,
+            value = holder[key];
+
+  // If the value has a toJSON method, call it to obtain a replacement value.
+
+        if (value instanceof Date) {
+            value = date(key);
+        }
+
+  // If we were called with a replacer function, then call the replacer to
+  // obtain a replacement value.
+
+        if (typeof rep === 'function') {
+            value = rep.call(holder, key, value);
+        }
+
+  // What happens next depends on the value's type.
+
+        switch (typeof value) {
+        case 'string':
+            return quote(value);
+
+        case 'number':
+
+  // JSON numbers must be finite. Encode non-finite numbers as null.
+
+            return isFinite(value) ? String(value) : 'null';
+
+        case 'boolean':
+        case 'null':
+
+  // If the value is a boolean or null, convert it to a string. Note:
+  // typeof null does not produce 'null'. The case is included here in
+  // the remote chance that this gets fixed someday.
+
+            return String(value);
+
+  // If the type is 'object', we might be dealing with an object or an array or
+  // null.
+
+        case 'object':
+
+  // Due to a specification blunder in ECMAScript, typeof null is 'object',
+  // so watch out for that case.
+
+            if (!value) {
+                return 'null';
+            }
+
+  // Make an array to hold the partial results of stringifying this object value.
+
+            gap += indent;
+            partial = [];
+
+  // Is the value an array?
+
+            if (Object.prototype.toString.apply(value) === '[object Array]') {
+
+  // The value is an array. Stringify every element. Use null as a placeholder
+  // for non-JSON values.
+
+                length = value.length;
+                for (i = 0; i < length; i += 1) {
+                    partial[i] = str(i, value) || 'null';
+                }
+
+  // Join all of the elements together, separated with commas, and wrap them in
+  // brackets.
+
+                v = partial.length === 0 ? '[]' : gap ?
+                    '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
+                    '[' + partial.join(',') + ']';
+                gap = mind;
+                return v;
+            }
+
+  // If the replacer is an array, use it to select the members to be stringified.
+
+            if (rep && typeof rep === 'object') {
+                length = rep.length;
+                for (i = 0; i < length; i += 1) {
+                    if (typeof rep[i] === 'string') {
+                        k = rep[i];
+                        v = str(k, value);
+                        if (v) {
+                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
+                        }
+                    }
+                }
+            } else {
+
+  // Otherwise, iterate through all of the keys in the object.
+
+                for (k in value) {
+                    if (Object.prototype.hasOwnProperty.call(value, k)) {
+                        v = str(k, value);
+                        if (v) {
+                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
+                        }
+                    }
+                }
+            }
+
+  // Join all of the member texts together, separated with commas,
+  // and wrap them in braces.
+
+            v = partial.length === 0 ? '{}' : gap ?
+                '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
+                '{' + partial.join(',') + '}';
+            gap = mind;
+            return v;
+        }
+    }
+
+  // If the JSON object does not yet have a stringify method, give it one.
+
+    JSON.stringify = function (value, replacer, space) {
+
+  // The stringify method takes a value and an optional replacer, and an optional
+  // space parameter, and returns a JSON text. The replacer can be a function
+  // that can replace values, or an array of strings that will select the keys.
+  // A default replacer method can be provided. Use of the space parameter can
+  // produce text that is more easily readable.
+
+        var i;
+        gap = '';
+        indent = '';
+
+  // If the space parameter is a number, make an indent string containing that
+  // many spaces.
+
+        if (typeof space === 'number') {
+            for (i = 0; i < space; i += 1) {
+                indent += ' ';
+            }
+
+  // If the space parameter is a string, it will be used as the indent string.
+
+        } else if (typeof space === 'string') {
+            indent = space;
+        }
+
+  // If there is a replacer, it must be a function or an array.
+  // Otherwise, throw an error.
+
+        rep = replacer;
+        if (replacer && typeof replacer !== 'function' &&
+                (typeof replacer !== 'object' ||
+                typeof replacer.length !== 'number')) {
+            throw new Error('JSON.stringify');
+        }
+
+  // Make a fake root object containing our value under the key of ''.
+  // Return the result of stringifying the value.
+
+        return str('', {'': value});
+    };
+
+  // If the JSON object does not yet have a parse method, give it one.
+
+    JSON.parse = function (text, reviver) {
+    // The parse method takes a text and an optional reviver function, and returns
+    // a JavaScript value if the text is a valid JSON text.
+
+        var j;
+
+        function walk(holder, key) {
+
+    // The walk method is used to recursively walk the resulting structure so
+    // that modifications can be made.
+
+            var k, v, value = holder[key];
+            if (value && typeof value === 'object') {
+                for (k in value) {
+                    if (Object.prototype.hasOwnProperty.call(value, k)) {
+                        v = walk(value, k);
+                        if (v !== undefined) {
+                            value[k] = v;
+                        } else {
+                            delete value[k];
+                        }
+                    }
+                }
+            }
+            return reviver.call(holder, key, value);
+        }
+
+
+    // Parsing happens in four stages. In the first stage, we replace certain
+    // Unicode characters with escape sequences. JavaScript handles many characters
+    // incorrectly, either silently deleting them, or treating them as line endings.
+
+        text = String(text);
+        cx.lastIndex = 0;
+        if (cx.test(text)) {
+            text = text.replace(cx, function (a) {
+                return '\\u' +
+                    ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+            });
+        }
+
+    // In the second stage, we run the text against regular expressions that look
+    // for non-JSON patterns. We are especially concerned with '()' and 'new'
+    // because they can cause invocation, and '=' because it can cause mutation.
+    // But just to be safe, we want to reject all unexpected forms.
+
+    // We split the second stage into 4 regexp operations in order to work around
+    // crippling inefficiencies in IE's and Safari's regexp engines. First we
+    // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
+    // replace all simple value tokens with ']' characters. Third, we delete all
+    // open brackets that follow a colon or comma or that begin the text. Finally,
+    // we look to see that the remaining characters are only whitespace or ']' or
+    // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
+
+        if (/^[\],:{}\s]*$/
+                .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
+                    .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
+                    .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
+
+    // In the third stage we use the eval function to compile the text into a
+    // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
+    // in JavaScript: it can begin a block or an object literal. We wrap the text
+    // in parens to eliminate the ambiguity.
+
+            j = eval('(' + text + ')');
+
+    // In the optional fourth stage, we recursively walk the new structure, passing
+    // each name/value pair to a reviver function for possible transformation.
+
+            return typeof reviver === 'function' ?
+                walk({'': j}, '') : j;
+        }
+
+    // If the text is not JSON parseable, then a SyntaxError is thrown.
+
+        throw new SyntaxError('JSON.parse');
+    };
+
+    return JSON;
+  })();
+
+  if ('undefined' != typeof window) {
+    window.expect = module.exports;
+  }
+
+})(
+    this
+  , 'undefined' != typeof module ? module : {exports: {}}
+);

+{
+    "name": "expect.js"
+  , "version": "0.3.1"
+  , "description": "BDD style assertions for node and the browser."
+  , "repository": {
+        "type": "git",
+        "url": "git://github.com/LearnBoost/expect.js.git"
+    }
+  , "devDependencies": {
+        "mocha": "*"
+      , "serve": "*"
+    }
+  , "spm": {
+    "main": "index.js"
+  }
+}

+
+/*!
+ * Common test dependencies.
+ */
+
+// expose the globals that are obtained through `<script>` on the browser
+expect = require('../expect')

+
+/**
+ * Module dependencies.
+ */
+
+function err (fn, msg) {
+  try {
+    fn();
+    throw new Error('Expected an error');
+  } catch (err) {
+    expect(msg).to.be(err.message);
+  }
+}
+
+/**
+ * Feature detection for `name` support.
+ */
+
+var nameSupported;
+
+(function a () {
+  nameSupported = 'a' == a.name;
+})();
+
+/**
+ * Tests.
+ */
+
+describe('expect', function () {
+
+  it('should have .version', function () {
+    expect(expect.version).to.match(/^\d+\.\d+\.\d+$/);
+  });
+
+  it('should work in its basic form', function () {
+    expect('test').to.be.a('string');
+  });
+
+  it('should test true', function () {
+    expect(true).to.be(true);
+    expect(false).to.not.be(true);
+    expect(1).to.not.be(true);
+
+    err(function () {
+      expect('test').to.be(true);
+    }, "expected 'test' to equal true")
+  });
+
+  it('should allow not.to', function () {
+    expect(true).not.to.be(false);
+
+    err(function () {
+      expect(false).not.to.be(false);
+    }, "expected false to not equal false")
+  });
+
+  it('should test ok', function () {
+    expect(true).to.be.ok();
+    expect(false).to.not.be.ok();
+    expect(1).to.be.ok();
+    expect(0).to.not.be.ok();
+
+    err(function () {
+      expect('').to.be.ok();
+    }, "expected '' to be truthy");
+
+    err(function () {
+      expect('test').to.not.be.ok();
+    }, "expected 'test' to be falsy");
+  });
+
+  it('should test false', function () {
+    expect(false).to.be(false);
+    expect(true).to.not.be(false);
+    expect(0).to.not.be(false);
+
+    err(function () {
+      expect('').to.be(false);
+    }, "expected '' to equal false")
+  });
+
+  it('should test functions with arguments', function () {
+    function itThrowsSometimes (first, second) {
+      if (first ^ second) {
+        throw new Error('tell');
+      }
+    }
+
+    expect(itThrowsSometimes).withArgs(false, false).to.not.throwException();
+    expect(itThrowsSometimes).withArgs(false, true).to.throwException(/tell/);
+    expect(itThrowsSometimes).withArgs(true, false).to.throwException(/tell/);
+    expect(itThrowsSometimes).withArgs(true, true).to.not.throwException();
+  });
+
+  it('should test for exceptions', function () {
+    function itThrows () {
+      a.b.c;
+    }
+
+    function itThrowsString () {
+      throw 'aaa';
+    }
+
+    function itThrowsMessage () {
+      throw new Error('tobi');
+    }
+
+    var anonItThrows = function () {
+      a.b.c;
+    }
+
+    function itWorks () {
+      return
+    }
+
+    var anonItWorks = function () { }
+
+    expect(itThrows).to.throwException();
+    expect(itWorks).to.not.throwException();
+
+    var subject;
+
+    expect(itThrows).to.throwException(function (e) {
+      subject = e;
+    });
+
+    expect(subject).to.be.an(Error);
+
+    expect(itThrowsMessage).to.throwException(/tobi/);
+    expect(itThrowsMessage).to.not.throwException(/test/);
+
+    err(function () {
+      expect(itThrowsMessage).to.throwException(/no match/);
+    }, 'expected \'tobi\' to match /no match/');
+
+    var subject2;
+
+    expect(itThrowsString).to.throwException(function (str) {
+      subject2 = str;
+    });
+
+    expect(subject2).to.be('aaa');
+
+    expect(itThrowsString).to.throwException(/aaa/);
+    expect(itThrowsString).to.not.throwException(/bbb/);
+
+    err(function () {
+      expect(itThrowsString).to.throwException(/no match/i);
+    }, 'expected \'aaa\' to match /no match/i');
+
+    var called = false;
+
+    expect(itWorks).to.not.throwError(function () {
+      called = true;
+    });
+
+    expect(called).to.be(false);
+
+    err(function () {
+      expect(5).to.throwException();
+    }, 'expected 5 to be a function');
+
+    err(function () {
+      expect(anonItThrows).not.to.throwException();
+    }, 'expected fn not to throw an exception');
+
+    err(function () {
+      expect(anonItWorks).to.throwException();
+    }, 'expected fn to throw an exception');
+
+    if (nameSupported) {
+      err(function () {
+        expect(itWorks).to.throwException();
+      }, 'expected itWorks to throw an exception');
+    } else {
+      err(function () {
+        expect(itWorks).to.throwException();
+      }, 'expected fn to throw an exception');
+    }
+
+    if (nameSupported) {
+      err(function () {
+        expect(itThrows).not.to.throwException();
+      }, 'expected itThrows not to throw an exception');
+    } else {
+      err(function () {
+        expect(anonItThrows).not.to.throwException();
+      }, 'expected fn not to throw an exception');
+    }
+  });
+
+  it('should test arrays', function () {
+    expect([]).to.be.a('array');
+    expect([]).to.be.an('array');
+
+    err(function () {
+      expect({}).to.be.an('array');
+    }, 'expected {} to be an array');
+  });
+
+  it('should test regex', function () {
+    expect(/a/).to.be.an('regexp');
+    expect(/a/).to.be.a('regexp');
+
+    err(function () {
+      expect(null).to.be.a('regexp');
+    }, 'expected null to be a regexp');
+  });
+
+  it('should test objects', function () {
+    expect({}).to.be.an('object');
+
+    err(function () {
+      expect(null).to.be.an('object');
+    }, 'expected null to be an object');
+  });
+
+  it('should test .equal()', function () {
+    var foo;
+    expect(foo).to.be(undefined);
+  });
+
+  it('should test typeof', function () {
+    expect('test').to.be.a('string');
+
+    err(function () {
+      expect('test').to.not.be.a('string');
+    }, "expected 'test' not to be a string");
+
+    expect(5).to.be.a('number');
+
+    err(function () {
+      expect(5).to.not.be.a('number');
+    }, "expected 5 not to be a number");
+  });
+
+  it('should test instanceof', function () {
+    function Foo(){}
+    expect(new Foo()).to.be.a(Foo);
+
+    if (nameSupported) {
+      err(function () {
+        expect(3).to.be.a(Foo);
+      }, "expected 3 to be an instance of Foo");
+    } else {
+      err(function () {
+        expect(3).to.be.a(Foo);
+      }, "expected 3 to be an instance of supplied constructor");
+    }
+  });
+
+  it('should test within(start, finish)', function () {
+    expect(5).to.be.within(3,6);
+    expect(5).to.be.within(3,5);
+    expect(5).to.not.be.within(1,3);
+
+    err(function () {
+      expect(5).to.not.be.within(4,6);
+    }, "expected 5 to not be within 4..6");
+
+    err(function () {
+      expect(10).to.be.within(50,100);
+    }, "expected 10 to be within 50..100");
+  });
+
+  it('should test above(n)', function () {
+    expect(5).to.be.above(2);
+    expect(5).to.be.greaterThan(2);
+    expect(5).to.not.be.above(5);
+    expect(5).to.not.be.above(6);
+
+    err(function () {
+      expect(5).to.be.above(6);
+    }, "expected 5 to be above 6");
+
+    err(function () {
+      expect(10).to.not.be.above(6);
+    }, "expected 10 to be below 6");
+  });
+
+  it('should test match(regexp)', function () {
+    expect('foobar').to.match(/^foo/)
+    expect('foobar').to.not.match(/^bar/)
+
+    err(function () {
+      expect('foobar').to.match(/^bar/i)
+    }, "expected 'foobar' to match /^bar/i");
+
+    err(function () {
+      expect('foobar').to.not.match(/^foo/i)
+    }, "expected 'foobar' not to match /^foo/i");
+  });
+
+  it('should test length(n)', function () {
+    expect('test').to.have.length(4);
+    expect('test').to.not.have.length(3);
+    expect([1,2,3]).to.have.length(3);
+
+    err(function () {
+      expect(4).to.have.length(3);
+    }, 'expected 4 to have a property \'length\'');
+
+    err(function () {
+      expect('asd').to.not.have.length(3);
+    }, "expected 'asd' to not have a length of 3");
+  });
+
+  it('should test eql(val)', function () {
+    expect('test').to.eql('test');
+    expect({ foo: 'bar' }).to.eql({ foo: 'bar' });
+    expect(1).to.eql(1);
+    expect('4').to.eql(4);
+    expect(/a/gmi).to.eql(/a/mig);
+
+    err(function () {
+      expect(4).to.eql(3);
+    }, 'expected 4 to sort of equal 3');
+  });
+
+  it('should test equal(val)', function () {
+    expect('test').to.equal('test');
+    expect(1).to.equal(1);
+
+    err(function () {
+      expect(4).to.equal(3);
+    }, 'expected 4 to equal 3');
+
+    err(function () {
+      expect('4').to.equal(4);
+    }, "expected '4' to equal 4");
+  });
+
+  it('should test be(val)', function () {
+    expect('test').to.be('test');
+    expect(1).to.be(1);
+
+    err(function () {
+      expect(4).to.be(3);
+    }, 'expected 4 to equal 3');
+
+    err(function () {
+      expect('4').to.be(4);
+    }, "expected '4' to equal 4");
+  });
+
+  it('should test empty', function () {
+    expect('').to.be.empty();
+    expect({}).to.be.empty();
+    expect([]).to.be.empty();
+    expect({ length: 0 }).to.be.empty();
+
+    err(function () {
+      expect(null).to.be.empty();
+    }, 'expected null to be an object');
+
+    err(function () {
+      expect({ a: 'b' }).to.be.empty();
+    }, 'expected { a: \'b\' } to be empty');
+
+    err(function () {
+      expect({ length: '0' }).to.be.empty();
+    }, 'expected { length: \'0\' } to be empty');
+
+    err(function () {
+      expect('asd').to.be.empty();
+    }, "expected 'asd' to be empty");
+
+    err(function () {
+      expect('').to.not.be.empty();
+    }, "expected '' to not be empty");
+
+    err(function () {
+      expect({}).to.not.be.empty();
+    }, "expected {} to not be empty");
+  });
+
+  it('should test property(name)', function () {
+    expect('test').to.have.property('length');
+    expect(4).to.not.have.property('length');
+    expect({ length: undefined }).to.have.property('length');
+
+    err(function () {
+      expect('asd').to.have.property('foo');
+    }, "expected 'asd' to have a property 'foo'");
+    
+    err(function () {
+      expect({ length: undefined }).to.not.have.property('length');
+    }, "expected { length: undefined } to not have a property 'length'");
+  });
+
+  it('should test property(name, val)', function () {
+    expect('test').to.have.property('length', 4);
+    expect({ length: undefined }).to.have.property('length', undefined);
+
+    err(function () {
+      expect('asd').to.have.property('length', 4);
+    }, "expected 'asd' to have a property 'length' of 4, but got 3");
+
+    err(function () {
+      expect('asd').to.not.have.property('length', 3);
+    }, "expected 'asd' to not have a property 'length' of 3");
+
+    err(function () {
+      expect('asd').to.not.have.property('foo', 3);
+    }, "'asd' has no property 'foo'");
+    
+    err(function () {
+      expect({ length: undefined }).to.not.have.property('length', undefined);
+    }, "expected { length: undefined } to not have a property 'length'");
+  });
+
+  it('should test own.property(name)', function () {
+    expect('test').to.have.own.property('length');
+    expect({ length: 12 }).to.have.own.property('length');
+
+    err(function () {
+      expect({ length: 12 }).to.not.have.own.property('length');
+    }, "expected { length: 12 } to not have own property 'length'");
+  });
+
+  it('should test string()', function () {
+    expect('foobar').to.contain('bar');
+    expect('foobar').to.contain('foo');
+    expect('foobar').to.include.string('foo');
+    expect('foobar').to.not.contain('baz');
+    expect('foobar').to.not.include.string('baz');
+
+    err(function () {
+      expect(3).to.contain('baz');
+    }, "expected 3 to contain 'baz'");
+
+    err(function () {
+      expect('foobar').to.contain('baz');
+    }, "expected 'foobar' to contain 'baz'");
+
+    err(function () {
+      expect('foobar').to.not.contain('bar');
+    }, "expected 'foobar' to not contain 'bar'");
+  });
+
+  it('should test contain()', function () {
+    expect(['foo', 'bar']).to.contain('foo');
+    expect(['foo', 'bar']).to.contain('foo');
+    expect(['foo', 'bar']).to.contain('bar');
+    expect([1,2]).to.contain(1);
+    expect(['foo', 'bar']).to.not.contain('baz');
+    expect(['foo', 'bar']).to.not.contain(1);
+
+    err(function () {
+      expect(['foo']).to.contain('bar');
+    }, "expected [ 'foo' ] to contain 'bar'");
+
+    err(function () {
+      expect(['bar', 'foo']).to.not.contain('foo');
+    }, "expected [ 'bar', 'foo' ] to not contain 'foo'");
+  });
+
+  it('should test keys(array)', function () {
+    expect({ foo: 1 }).to.have.keys(['foo']);
+    expect({ foo: 1, bar: 2 }).to.have.keys(['foo', 'bar']);
+    expect({ foo: 1, bar: 2 }).to.have.keys('foo', 'bar');
+    expect({ foo: 1, bar: 2, baz: 3 }).to.include.keys('foo', 'bar');
+    expect({ foo: 1, bar: 2, baz: 3 }).to.include.keys('bar', 'foo');
+    expect({ foo: 1, bar: 2, baz: 3 }).to.include.keys('baz');
+
+    expect({ foo: 1, bar: 2 }).to.include.keys('foo');
+    expect({ foo: 1, bar: 2 }).to.include.keys('bar', 'foo');
+    expect({ foo: 1, bar: 2 }).to.include.keys(['foo']);
+    expect({ foo: 1, bar: 2 }).to.include.keys(['bar']);
+    expect({ foo: 1, bar: 2 }).to.include.keys(['bar', 'foo']);
+
+    expect({ foo: 1, bar: 2 }).to.not.have.keys('baz');
+    expect({ foo: 1, bar: 2 }).to.not.have.keys('foo', 'baz');
+    expect({ foo: 1, bar: 2 }).to.not.include.keys('baz');
+    expect({ foo: 1, bar: 2 }).to.not.include.keys('foo', 'baz');
+    expect({ foo: 1, bar: 2 }).to.not.include.keys('baz', 'foo');
+
+    err(function () {
+      expect({ foo: 1 }).to.have.keys();
+    }, "keys required");
+
+    err(function () {
+      expect({ foo: 1 }).to.have.keys([]);
+    }, "keys required");
+
+    err(function () {
+      expect({ foo: 1 }).to.not.have.keys([]);
+    }, "keys required");
+
+    err(function () {
+      expect({ foo: 1 }).to.include.keys([]);
+    }, "keys required");
+
+    err(function () {
+      expect({ foo: 1 }).to.have.keys(['bar']);
+    }, "expected { foo: 1 } to include key 'bar'");
+
+    err(function () {
+      expect({ foo: 1 }).to.have.keys(['bar', 'baz']);
+    }, "expected { foo: 1 } to include keys 'bar', and 'baz'");
+
+    err(function () {
+      expect({ foo: 1 }).to.have.keys(['foo', 'bar', 'baz']);
+    }, "expected { foo: 1 } to include keys 'foo', 'bar', and 'baz'");
+
+    err(function () {
+      expect({ foo: 1 }).to.not.have.keys(['foo']);
+    }, "expected { foo: 1 } to not include key 'foo'");
+
+    err(function () {
+      expect({ foo: 1 }).to.not.have.keys(['foo']);
+    }, "expected { foo: 1 } to not include key 'foo'");
+
+    err(function () {
+      expect({ foo: 1, bar: 2 }).to.not.have.keys(['foo', 'bar']);
+    }, "expected { foo: 1, bar: 2 } to not include keys 'foo', and 'bar'");
+
+    err(function () {
+      expect({ foo: 1 }).to.not.include.keys(['foo']);
+    }, "expected { foo: 1 } to not include key 'foo'");
+
+    err(function () {
+      expect({ foo: 1 }).to.include.keys('foo', 'bar');
+    }, "expected { foo: 1 } to include keys 'foo', and 'bar'");
+
+    // only
+    expect({ foo: 1, bar: 1 }).to.only.have.keys('foo', 'bar');
+    expect({ foo: 1, bar: 1 }).to.only.have.keys(['foo', 'bar']);
+
+    err(function () {
+      expect({ a: 'b', c: 'd' }).to.only.have.keys('a', 'b', 'c');
+    }, "expected { a: 'b', c: 'd' } to only have keys 'a', 'b', and 'c'");
+
+    err(function () {
+      expect({ a: 'b', c: 'd' }).to.only.have.keys('a');
+    }, "expected { a: 'b', c: 'd' } to only have key 'a'");
+  });
+
+  it('should allow chaining with `and`', function () {
+    expect(5).to.be.a('number').and.be(5);
+    expect(5).to.be.a('number').and.not.be(6);
+    expect(5).to.be.a('number').and.not.be(6).and.not.be('5');
+
+    err(function () {
+      expect(5).to.be.a('number').and.not.be(5);
+    }, "expected 5 to not equal 5");
+
+    err(function () {
+      expect(5).to.be.a('number').and.not.be(6).and.not.be.above(4);
+    }, "expected 5 to be below 4");
+  });
+
+  it('should fail with `fail`', function () {
+    err(function () {
+        expect().fail();
+    }, "explicit failure");
+  });
+
+  it('should fail with `fail` and custom message', function () {
+    err(function () {
+        expect().fail("explicit failure with message");
+    }, "explicit failure with message");
+  });
+
+});

+<!doctype html>
+<html>
+  <head>
+    <title>expect.js tests</title>
+    <link href="/support/mocha.css" rel="stylesheet" media="screen" />
+    <script src="/support/jquery.js"></script>
+    <script src="/support/mocha.js"></script>
+    <script>mocha.setup({ ui: 'bdd', globals: ['script*']});</script>
+    <script src="/expect.js"></script>
+    <script src="/test/expect.js"></script>
+    <script>window.onload = mocha.run;</script>
+  </head>
+  <body>
+    <div id="mocha"></div>
+  </body>
+</html>

+language: node_js
+
+node_js:
+  - "0.10"
+
+install:
+  - npm install spm coveralls
+
+before_script:
+  - node_modules/spm/bin/spm-install
+
+script:
+  - node_modules/spm/bin/spm-test
+
+after_success:
+  - node_modules/spm/bin/spm-test --coveralls | node_modules/.bin/coveralls

+# History
+
+---
+
+## 0.0.1
+
+`new` It is the first version of jquery.imagesloaded.

+# jquery.imagesloaded [![spm version](http://spm.yoho.cn/badge/jquery.imagesloaded)](http://spm.yoho.cn/package/jquery.imagesloaded)
+
+---
+
+获取页面一组图片加载完成后触发一个loaded事件
+
+## Install
+
+```
+$ spm install jquery.imagesloaded --save
+```
+
+## Usage
+
+```js
+var jquery.imagesloaded = require('jquery.imagesloaded');
+// use jquery.imagesloaded
+```

+  /**
+ * @fileOverview jqueryui插件封装
+ * @author：Hbomb(zhouqq@yoho.cn)
+ * @date：2012-07-09
+ */
+  var $ = require("jquery");
+  // ======================= imagesLoaded Plugin ===============================
+  /*
+   * jQuery imagesLoaded plugin v1.1.0
+   * http://github.com/desandro/imagesloaded
+   *
+   * MIT License. by Paul Irish et al.
+   */
+
+
+  // $('#my-container').imagesLoaded(myFunction)
+  // or
+  // $('img').imagesLoaded(myFunction)
+
+  // execute a callback when all images have loaded.
+  // needed because .load() doesn't work on cached images
+
+  // callback function gets image collection as argument
+  //  `this` is the container
+  $.fn.imagesLoaded = function( callback ) {
+    var $this = this,
+        $images = $this.find('img').add( $this.filter('img') ),
+        len = $images.length,
+        blank = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==',
+        loaded = [];
+
+    function triggerCallback() {
+      callback.call( $this, $images );
+    }
+
+    function imgLoaded( event ) {
+      var img = event.target;
+      if ( img.src !== blank && $.inArray( img, loaded ) === -1 ){
+        loaded.push( img );
+        if ( --len <= 0 ){
+          setTimeout( triggerCallback );
+          $images.unbind( '.imagesLoaded', imgLoaded );
+        }
+      }
+    }
+
+    // if no images, trigger immediately
+    if ( !len ) {
+      triggerCallback();
+    }
+
+    $images.bind( 'load.imagesLoaded error.imagesLoaded',  imgLoaded ).each( function() {
+      // cached images don't fire load sometimes, so we reset src.
+      var src = this.src;
+      // webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
+      // data uri bypasses webkit log warning (thx doug jones)
+      this.src = blank;
+      if(src.indexOf(location.href)!=0)
+      {
+          this.src = src;
+      }
+    });
+
+    return $this;
+  };
\ No newline at end of file

+{
+  "name": "jquery.imagesloaded",
+  "version": "0.0.2",
+  "description": "获取页面一组图片加载完成后触发一个loaded事件",
+  "keywords": [],
+  "homepage": "",
+  "author": "hbomb <qiqi.zhou@yoho.cn>",
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:desandro/imagesloaded.git"
+  },
+  "bugs": {
+    "url": ""
+  },
+  "licenses": "MIT",
+  "spm": {
+    "main": "index.js",
+    "dependencies": {
+      "jquery": "1.7.2"
+    },
+    "devDependencies": {
+      "expect.js": "0.3.1"
+    }
+  },
+  "devDependencies": {
+    "spm": "3"
+  },
+  "scripts": {
+    "test": "spm test",
+    "build": "spm build"
+  }
+}

+language: node_js
+
+node_js:
+  - "0.10"
+
+install:
+  - npm install spm coveralls
+
+before_script:
+  - node_modules/spm/bin/spm-install
+
+script:
+  - node_modules/spm/bin/spm-test
+
+after_success:
+  - node_modules/spm/bin/spm-test --coveralls | node_modules/.bin/coveralls

+# History
+
+---
+
+## 0.0.1
+
+`new` It is the first version of jquery.rotate2d.

+# jquery.rotate2d [![spm version](http://spm.yoho.cn/badge/jquery.rotate2d)](http://spm.yoho.cn/package/jquery.rotate2d)
+
+---
+
+jquery.rotate2d
+
+## Install
+
+```
+$ spm install jquery.rotate2d --save
+```
+
+## Usage
+
+```js
+var jquery.rotate2d = require('jquery.rotate2d');
+// use jquery.rotate2d
+```

+
+	var $ = require("jquery");
+	require('jquery.imagesloaded');
+	
+	
+	
+	$.fn.imagesLoaded = function( callback ) {
+    var $this = this,
+        $images = $this.find('img').add( $this.filter('img') ),
+        len = $images.length,
+        blank = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==',
+        loaded = [];
+
+    function triggerCallback() {
+      callback.call( $this, $images );
+    }
+
+    function imgLoaded( event ) {
+      var img = event.target;
+      if ( img.src !== blank && $.inArray( img, loaded ) === -1 ){
+        loaded.push( img );
+        if ( --len <= 0 ){
+          setTimeout( triggerCallback );
+          $images.unbind( '.imagesLoaded', imgLoaded );
+        }
+      }
+    }
+
+    // if no images, trigger immediately
+    if ( !len ) {
+      triggerCallback();
+    }
+
+    $images.bind( 'load.imagesLoaded error.imagesLoaded',  imgLoaded ).each( function() {
+      // cached images don't fire load sometimes, so we reset src.
+      var src = this.src;
+      // webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
+      // data uri bypasses webkit log warning (thx doug jones)
+      this.src = blank;
+      if(src.indexOf(location.href)!=0)
+      {
+          this.src = src;
+      }
+    });
+
+    return $this;
+  };
+  
+  
+  
+  $.fn.dbRotate2D=function(options){
+		var opt={
+			rotateSpeed:100       //雀傈加档
+		}
+		$.extend(opt,options);
+		//console.dir($(".lifestyle-flip").length);
+		return this.each(function(){
+			var $this=$(this);
+			var $img=$this.find('img');
+			var imgWidth=0;//$img.width();
+			var imgHeight=0;//$img.height();
+			var mOver=false;
+			if($img==null)
+			{
+				return ;
+			}
+			$img.imagesLoaded(function(){
+				imgWidth=$(this).width();
+				imgHeight=$(this).height();
+				$img.parent().css({
+					display:"block",
+					height:imgHeight
+				})
+				init();
+			});
+			
+
+			function init(){
+				setCss();
+				setMouseEvent();
+			}
+			
+			function setCss(){			
+				$this.css({'width':imgWidth,'height':imgHeight});
+				$this.find("img").css({'width':imgWidth,'height':imgHeight});
+				$img.data({'out':$img.attr('src'),'over':$img.attr('alt')});
+			}
+			var isPlayOver=true;
+			var playOnce=true;
+			var isEnter=false;
+			function setMouseEvent(){
+				//console.dir($this);
+				$this.unbind().bind({
+						'mouseenter':function(){
+							
+							mOver=true;
+							setAnimation();
+							isEnter=true;
+							return false;
+						},
+						'mouseleave':function(event){
+								mOver=false;
+								isEnter=false;
+								setAnimation();
+								return false;
+						}
+					})
+					
+			}
+						
+			function setAnimation(){
+				if(mOver==true){
+					if(isPlayOver&&playOnce==true)
+					{
+						isPlayOver=false;
+						$img.parent().stop()
+							.animate({'left':imgWidth/2,'width':0},opt.rotateSpeed,function(){
+								var thisImg=$(this).find("img");
+								thisImg.attr({'src':thisImg.data('over')});
+							})
+							.animate({'left':0,'width':imgWidth},opt.rotateSpeed,function(){isPlayOver=true});
+							playOnce=false;
+					}
+					
+				}else{
+					if(isPlayOver)
+					{
+						isPlayOver=false;
+						$img.parent().stop()
+						.animate({'left':imgWidth/2,'width':0},opt.rotateSpeed,function(){	
+							var thisImg=$(this).find("img");				
+							thisImg.attr({'src':thisImg.data('out')});	
+						})
+						.animate({'left':0,'width':imgWidth},opt.rotateSpeed,function(){isPlayOver=true});
+						playOnce=true;
+					}
+					
+				}
+			}	
+			
+		})			
+				
+	}

+{
+  "name": "jquery.rotate2d",
+  "version": "0.0.1",
+  "description": "jquery.rotate2d",
+  "keywords": [],
+  "homepage": "",
+  "author": "happyhour7 <happyhour7@163.com>",
+  "repository": {
+    "type": "git",
+    "url": ""
+  },
+  "bugs": {
+    "url": ""
+  },
+  "licenses": "MIT",
+  "spm": {
+    "main": "index.js",
+    "dependencies": {
+      "jquery": "1.8.3",
+      "jquery.imagesloaded": "0.0.2"
+    },
+    "devDependencies": {
+      "expect.js": "0.3.1"
+    }
+  },
+  "devDependencies": {
+    "spm": "3"
+  },
+  "scripts": {
+    "test": "spm test",
+    "build": "spm build"
+  }
+}
\ No newline at end of file

+{
+  "name"        : "jquery",
+  "version"     : "1.7.2",
+  "main"        : "./jquery.js",
+  "dependencies": {
+  }
+}
+

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+{
+  "name": "jquery",
+  "description": "JavaScript library for DOM operations",
+  "version": "1.7.2",
+  "homepage": "http://jquery.com",
+  "author": {
+    "name": "jQuery Foundation and other contributors",
+    "url": "https://github.com/jquery/jquery/blob/master/AUTHORS.txt"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jquery/jquery.git"
+  },
+  "keywords": [
+    "jquery",
+    "javascript",
+    "browser",
+    "library"
+  ],
+  "bugs": {
+    "url": "http://bugs.jquery.com"
+  },
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt"
+    }
+  ],
+  "spm": {
+    "main": "jquery.js"
+  }
+}
+
+
+

+build
+vendor
+components

+jQuery Component
+================
+
+Shim repository for jQuery.

+{
+  "name": "jquery",
+  "version": "1.8.3",
+  "description": "jQuery component",
+  "keywords": [
+    "jquery",
+    "component"
+  ],
+  "scripts": [
+    "jquery.js"
+  ],
+  "license": "MIT"
+}

+{
+    "name": "components/jquery",
+    "description": "jQuery JavaScript Library",
+    "type": "component",
+    "homepage": "http://jquery.com",
+    "license": "MIT",
+    "support": {
+        "irc": "irc://irc.freenode.org/jquery",
+        "issues": "http://bugs.jquery.com",
+        "forum": "http://forum.jquery.com",
+        "wiki": "http://docs.jquery.com/",
+        "source": "https://github.com/jquery/jquery"
+    },
+    "authors": [
+        {
+            "name": "John Resig",
+            "email": "jeresig@gmail.com"
+        }
+    ],
+    "require": {
+        "robloach/component-installer": "*"
+    },
+    "extra": {
+        "component": {
+            "scripts": [
+                "jquery.js"
+            ]
+        }
+    }
+}

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n=="object"?n[v.expando]?n:new v.Event(y,n):new v.Event(y),n.type=y,n.isTrigger=!0,n.exclusive=a,n.namespace=b.join("."),n.namespace_re=n.namespace?new RegExp("(^|\\.)"+b.join("\\.(?:.*\\.|)")+"(\\.|$)"):null,h=y.indexOf(":")<0?"on"+y:"";if(!s){u=v.cache;for(f in u)u[f].events&&u[f].events[y]&&v.event.trigger(n,r,u[f].handle.elem,!0);return}n.result=t,n.target||(n.target=s),r=r!=null?v.makeArray(r):[],r.unshift(n),p=v.event.special[y]||{};if(p.trigger&&p.trigger.apply(s,r)===!1)return;m=[[s,p.bindType||y]];if(!o&&!p.noBubble&&!v.isWindow(s)){g=p.delegateType||y,l=Y.test(g+y)?s:s.parentNode;for(c=s;l;l=l.parentNode)m.push([l,g]),c=l;c===(s.ownerDocument||i)&&m.push([c.defaultView||c.parentWindow||e,g])}for(f=0;f<m.length&&!n.isPropagationStopped();f++)l=m[f][0],n.type=m[f][1],d=(v._data(l,"events")||{})[n.type]&&v._data(l,"handle"),d&&d.apply(l,r),d=h&&l[h],d&&v.acceptData(l)&&d.apply&&d.apply(l,r)===!1&&n.preventDefault();return n.type=y,!o&&!n.isDefaultPrevented()&&(!p._default||p._default.apply(s.ownerDocument,r)===!1)&&(y!=="click"||!v.nodeName(s,"a"))&&v.acceptData(s)&&h&&s[y]&&(y!=="focus"&&y!=="blur"||n.target.offsetWidth!==0)&&!v.isWindow(s)&&(c=s[h],c&&(s[h]=null),v.event.triggered=y,s[y](),v.event.triggered=t,c&&(s[h]=c)),n.result}return},dispatch:function(n){n=v.event.fix(n||e.event);var r,i,s,o,u,a,f,c,h,p,d=(v._data(this,"events")||{})[n.type]||[],m=d.delegateCount,g=l.call(arguments),y=!n.exclusive&&!n.namespace,b=v.event.special[n.type]||{},w=[];g[0]=n,n.delegateTarget=this;if(b.preDispatch&&b.preDispatch.call(this,n)===!1)return;if(m&&(!n.button||n.type!=="click"))for(s=n.target;s!=this;s=s.parentNode||this)if(s.disabled!==!0||n.type!=="click"){u={},f=[];for(r=0;r<m;r++)c=d[r],h=c.selector,u[h]===t&&(u[h]=c.needsContext?v(h,this).index(s)>=0:v.find(h,this,null,[s]).length),u[h]&&f.push(c);f.length&&w.push({elem:s,matches:f})}d.length>m&&w.push({elem:this,matches:d.slice(m)});for(r=0;r<w.length&&!n.isPropagationStopped();r++){a=w[r],n.currentTarget=a.elem;for(i=0;i<a.matches.length&&!n.isImmediatePropagationStopped();i++){c=a.matches[i];if(y||!n.namespace&&!c.namespace||n.namespace_re&&n.namespace_re.test(c.namespace))n.data=c.data,n.handleObj=c,o=((v.event.special[c.origType]||{}).handle||c.handler).apply(a.elem,g),o!==t&&(n.result=o,o===!1&&(n.preventDefault(),n.stopPropagation()))}}return 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i=v.extend(new v.Event,n,{type:e,isSimulated:!0,originalEvent:{}});r?v.event.trigger(i,null,t):v.event.dispatch.call(t,i),i.isDefaultPrevented()&&n.preventDefault()}},v.event.handle=v.event.dispatch,v.removeEvent=i.removeEventListener?function(e,t,n){e.removeEventListener&&e.removeEventListener(t,n,!1)}:function(e,t,n){var r="on"+t;e.detachEvent&&(typeof e[r]=="undefined"&&(e[r]=null),e.detachEvent(r,n))},v.Event=function(e,t){if(!(this instanceof v.Event))return new v.Event(e,t);e&&e.type?(this.originalEvent=e,this.type=e.type,this.isDefaultPrevented=e.defaultPrevented||e.returnValue===!1||e.getPreventDefault&&e.getPreventDefault()?tt:et):this.type=e,t&&v.extend(this,t),this.timeStamp=e&&e.timeStamp||v.now(),this[v.expando]=!0},v.Event.prototype={preventDefault:function(){this.isDefaultPrevented=tt;var e=this.originalEvent;if(!e)return;e.preventDefault?e.preventDefault():e.returnValue=!1},stopPropagation:function(){this.isPropagationStopped=tt;var e=this.originalEvent;if(!e)return;e.stopPropagation&&e.stopPropagation(),e.cancelBubble=!0},stopImmediatePropagation:function(){this.isImmediatePropagationStopped=tt,this.stopPropagation()},isDefaultPrevented:et,isPropagationStopped:et,isImmediatePropagationStopped:et},v.each({mouseenter:"mouseover",mouseleave:"mouseout"},function(e,t){v.event.special[e]={delegateType:t,bindType:t,handle:function(e){var n,r=this,i=e.relatedTarget,s=e.handleObj,o=s.selector;if(!i||i!==r&&!v.contains(r,i))e.type=s.origType,n=s.handler.apply(this,arguments),e.type=t;return n}}}),v.support.submitBubbles||(v.event.special.submit={setup:function(){if(v.nodeName(this,"form"))return!1;v.event.add(this,"click._submit keypress._submit",function(e){var n=e.target,r=v.nodeName(n,"input")||v.nodeName(n,"button")?n.form:t;r&&!v._data(r,"_submit_attached")&&(v.event.add(r,"submit._submit",function(e){e._submit_bubble=!0}),v._data(r,"_submit_attached",!0))})},postDispatch:function(e){e._submit_bubble&&(delete 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o)o[n]&&o[n].stop&&Wn.test(n)&&i(o[n]);for(n=s.length;n--;)s[n].elem===this&&(e==null||s[n].queue===e)&&(s[n].anim.stop(r),t=!1,s.splice(n,1));(t||!r)&&v.dequeue(this,e)})}}),v.each({slideDown:Zn("show"),slideUp:Zn("hide"),slideToggle:Zn("toggle"),fadeIn:{opacity:"show"},fadeOut:{opacity:"hide"},fadeToggle:{opacity:"toggle"}},function(e,t){v.fn[e]=function(e,n,r){return this.animate(t,e,n,r)}}),v.speed=function(e,t,n){var r=e&&typeof e=="object"?v.extend({},e):{complete:n||!n&&t||v.isFunction(e)&&e,duration:e,easing:n&&t||t&&!v.isFunction(t)&&t};r.duration=v.fx.off?0:typeof r.duration=="number"?r.duration:r.duration in v.fx.speeds?v.fx.speeds[r.duration]:v.fx.speeds._default;if(r.queue==null||r.queue===!0)r.queue="fx";return r.old=r.complete,r.complete=function(){v.isFunction(r.old)&&r.old.call(this),r.queue&&v.dequeue(this,r.queue)},r},v.easing={linear:function(e){return e},swing:function(e){return.5-Math.cos(e*Math.PI)/2}},v.timers=[],v.fx=Yn.prototype.init,v.fx.tick=function(){var e,n=v.timers,r=0;qn=v.now();for(;r<n.length;r++)e=n[r],!e()&&n[r]===e&&n.splice(r--,1);n.length||v.fx.stop(),qn=t},v.fx.timer=function(e){e()&&v.timers.push(e)&&!Rn&&(Rn=setInterval(v.fx.tick,v.fx.interval))},v.fx.interval=13,v.fx.stop=function(){clearInterval(Rn),Rn=null},v.fx.speeds={slow:600,fast:200,_default:400},v.fx.step={},v.expr&&v.expr.filters&&(v.expr.filters.animated=function(e){return v.grep(v.timers,function(t){return e===t.elem}).length});var er=/^(?:body|html)$/i;v.fn.offset=function(e){if(arguments.length)return e===t?this:this.each(function(t){v.offset.setOffset(this,e,t)});var n,r,i,s,o,u,a,f={top:0,left:0},l=this[0],c=l&&l.ownerDocument;if(!c)return;return(r=c.body)===l?v.offset.bodyOffset(l):(n=c.documentElement,v.contains(n,l)?(typeof l.getBoundingClientRect!="undefined"&&(f=l.getBoundingClientRect()),i=tr(c),s=n.clientTop||r.clientTop||0,o=n.clientLeft||r.clientLeft||0,u=i.pageYOffset||n.scrollTop,a=i.pageXOffset||n.scrollLeft,{top:f.top+u-s,left:f.left+a-o}):f)},v.offset={bodyOffset:function(e){var t=e.offsetTop,n=e.offsetLeft;return v.support.doesNotIncludeMarginInBodyOffset&&(t+=parseFloat(v.css(e,"marginTop"))||0,n+=parseFloat(v.css(e,"marginLeft"))||0),{top:t,left:n}},setOffset:function(e,t,n){var r=v.css(e,"position");r==="static"&&(e.style.position="relative");var i=v(e),s=i.offset(),o=v.css(e,"top"),u=v.css(e,"left"),a=(r==="absolute"||r==="fixed")&&v.inArray("auto",[o,u])>-1,f={},l={},c,h;a?(l=i.position(),c=l.top,h=l.left):(c=parseFloat(o)||0,h=parseFloat(u)||0),v.isFunction(t)&&(t=t.call(e,n,s)),t.top!=null&&(f.top=t.top-s.top+c),t.left!=null&&(f.left=t.left-s.left+h),"using"in t?t.using.call(e,f):i.css(f)}},v.fn.extend({position:function(){if(!this[0])return;var e=this[0],t=this.offsetParent(),n=this.offset(),r=er.test(t[0].nodeName)?{top:0,left:0}:t.offset();return n.top-=parseFloat(v.css(e,"marginTop"))||0,n.left-=parseFloat(v.css(e,"marginLeft"))||0,r.top+=parseFloat(v.css(t[0],"borderTopWidth"))||0,r.left+=parseFloat(v.css(t[0],"borderLeftWidth"))||0,{top:n.top-r.top,left:n.left-r.left}},offsetParent:function(){return this.map(function(){var e=this.offsetParent||i.body;while(e&&!er.test(e.nodeName)&&v.css(e,"position")==="static")e=e.offsetParent;return e||i.body})}}),v.each({scrollLeft:"pageXOffset",scrollTop:"pageYOffset"},function(e,n){var r=/Y/.test(n);v.fn[e]=function(i){return v.access(this,function(e,i,s){var o=tr(e);if(s===t)return o?n in o?o[n]:o.document.documentElement[i]:e[i];o?o.scrollTo(r?v(o).scrollLeft():s,r?s:v(o).scrollTop()):e[i]=s},e,i,arguments.length,null)}}),v.each({Height:"height",Width:"width"},function(e,n){v.each({padding:"inner"+e,content:n,"":"outer"+e},function(r,i){v.fn[i]=function(i,s){var o=arguments.length&&(r||typeof i!="boolean"),u=r||(i===!0||s===!0?"margin":"border");return v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window);

+{
+  "name": "jquery",
+  "description": "JavaScript library for DOM operations",
+  "version": "1.8.3",
+  "homepage": "http://jquery.com",
+  "author": {
+    "name": "jQuery Foundation and other contributors",
+    "url": "https://github.com/jquery/jquery/blob/master/AUTHORS.txt"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jquery/jquery.git"
+  },
+  "keywords": [
+    "jquery",
+    "javascript",
+    "browser",
+    "library"
+  ],
+  "bugs": {
+    "url": "http://bugs.jquery.com"
+  },
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt"
+    }
+  ],
+  "spm": {
+    "main": "jquery.js"
+  }
+}

+var expect = require('expect.js');
+var yohoFlip = require('../index');
+
+describe('yoho-flip', function() {
+
+  it('normal usage', function() {
+
+  });
+
+});